Extron Electronics FOXBOX Tx_Rx HDMI User Guide - Manual (Page 20)

Audio output connector
See figure 12 to properly wire a captive screw output connector. The connector is included
with transmitter, but you must supply the audio cable. Use the supplied tie-wrap to strap the
audio cable to the extended tail of the connector.
Unbalanced Stereo Output Balanced Stereo Output
Do not tin the wires!
Tip
NO GROUND HERE
NO GROUND HERE
Tip
LR
Sleeves Sleeves
Tip
Ring
Tip
Ring
LR
Figure 12. Captive Screw Connector Wiring for Stereo Audio Output
ATTENTION: For unbalanced audio, connect the sleeves to the ground contact.
DO NOT connect the sleeves to the negative (-) contacts.
NOTES: The length of exposed wires is critical (see the RS-232 connector NOTE on
page 13 for more information.)
Front panel Configuration ports
NOTE: These ports are for remote control of the transmitter or receiver, not for the over
fiber RS-232 link.
The Configuration ports on the transmitter and receiver are 2.5 mm mini stereo jacks. The
9-pin D to 2.5 mm mini jack TRS RS-232 cable, part #70-335-01 (figure 13), included with
the transmitter, can be used for this connection.
6 feet
(1.8 m)
Part #70-335-01
5
1
9
6
Sleeve (Gnd)
Ring
Tip
9-pin D Connection TRS Plug
Pin 2 Rx line on the computer Tip
Pin 3 Tx line on the computer Ring
Pin 5 Signal ground on the computer Sleeve
Figure 13. 9-pin TRS RS-232 cable
This port is RS-232 only, with the following protocols:
• 9600 baud • no parity • 8 data bits
• 1 stop bit • no flow control
NOTE: The maximum distances from the transmitter or receiver to the controlling
device can vary up to 200 feet (61 m). Factors such as cable gauge, baud rates,
environment, and output levels (from the unit and the controlling device) all
affect transmission distance. Distances of about 50 feet (15 m) are typically not
a problem. In some cases, the unit may be capable of serial communications via
RS-232 up to 250 feet (76 m) away.
FOXBOX Tx/Rx HDMI • Installation and Operation 14